Elvid OptiView 250 3.2" LCD Viewfinder Fits Most 3.0" & 3.2" LCD Screens * Compatible with 3:2 & 4:3 Aspect Ratios * Magnifies Display by 300% Blocks Light from Hitting Screen * Soft Eyecup Can be Used with Either Eye * Rear Half Flips Up and Out of the Way Quick-Release Plate with 1/4"-20 Screw * Interchangeable Rail Mounting System * Long Rail Included for Battery Grips Eyepiece Cover, Limited 1-Year Warranty, Long Rail, Quick Release Mounting Plate, Quick Release Tab, Short Rail